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 Green Star Technical Clarification Rulings

Technical Clarifications for Green Star represent our answers to Technical Questions submitted by projects, and provide further guidance and reference to others. The list is regularly updated.  

There are two types of Technical Clarifications listed in the table below:

General Clarifications

These are extensions to the guidance provided in the Submission Guidelines. They clarify and sometimes supersede the original Credit Criteria or 
Compliance Requirements. General Clarifications set precedent for future project teams to follow. Should a project team wish to apply a general clarification to its project, there is no requirement for further Technical Questions to be submitted. NZGBC Assessors will also use them as precedents to assess submissions.

Project Specific Clarifications

These are published as references for other projects but, unlike General Clarifications, they do not set precedent. They often relate to special 
situations where multiple prerequisites exist for a particular project and are less likely to reoccur to another project. Therefore, rulings set for Project Specific Clarifications are often conditional and will likely vary for other projects. Each project still needs to submit its own Technical Questions and provides evidence relating to its own building in order to have a similar ruling approved for that specific building. 

Should you wish to apply any Technical Clarification for legacy rating tools to your projects, please submit a Technical Question to the NZGBC to 
explain why and how it applies. You can access the online Technical Question form here

Technical Question Title Tool Version Date Released Credit Name Sub-credit Name TC Link
Revision of Credit 25 DABv1 July 2020 25 - Stormwater Stormwater
Approved Ruling:

 Credit 25. Stormwater in Green Star Design & As-Built has been updated. The revised credit shall be used for Green Star projects and it supersedes the previous revision published in March 2020

The updates are based on the feedback that NZGBC received following the release of the previous updates and in-depth consultation with industrial professionals. Changes in the revised Stormwater credit include:
- Change from 'dissolved' Zinc and Copper to 'total' Zinc and Copper under table 25.1 Pollution Reduction Targets.
- Incorporation of a technical clarification issued in April 2020 which allows the Zinc and Copper to be excluded from modelling when proper source control methods are available.